Ejector or throw-off for sound-records.



T.-H. MACDONALD, EJECTOR 0R THROW-OFF FOR SOUND RECORDS.

Patented Sept; 7 1915.

2 SHEETS-SHEETL APPLICATION FILED DEC. 17.1308.

Fig.1

THOMAS H. MACDONALD, 0F BR IDGEPORT, CONNECTICUT, ASSIGNOR T0 AMERICAN GRAPHOPHONE COMPANY, OF BRIDGEPORT, CONNECTICUT, A CORPORATION OF WEST VIRGINIA. i

nancron OR fTHROW-OFF FOR SOUND-RECORDS.-

Specification of Letters Patent.

Patented Sept. '7, 1915.

Application filed December 17, 1908. Serial No. 468,007.

fully set forth in the following specification.

The present invention relates to' talkingmachines in which acylindrical record is carried by a mandrel, and the particular object of'the invention is to ,provide an m proved ejector for impartlng to the tablet an initial movement to disengage the same from the mandrel and project it beyond the end of the mandrel, in order that the fingers of the operator may be introduced into the end of the cylindrical tablet. By this means the tablet may be readily removed w thout injury which might result if the outside of the record was handled.

T he invention will be better understood by reference to the accompanying drawings, illustrating one expression of the inventlve idea, and wherein Figure 1 is a plan view, partly in section, of a preferred embodiment of my inventlon; and Fig. 2 is a front elevation of the same, partly broken away.

Referring to the drawings, wherein like reference numerals indicate like parts, 1 is the bed-plate, from which rises the end plate 2, front rail 3, and standards 4, 5, 6, 7, and 8. 9 is the ordinary revoluble tapered mandrel which carries the cylindrical sound record 9. The mandrel 9 is mounted on a shaft 10 which rests in a journal seat in standard 4 and carries the belt-pulley 11 and a smaller belt-pulley 12. An adjustable cone-bearing 13, mounted in the end plate 2, supports one end of this shaft. The other end of this shaft is preferably held by an other adjustable cone-bearing14-provided in the swinging gate 15, which latter has a comparatively long journal-bearing upon the standard 5. This gate .15 is latched at 16 to standard 6 in any desired manner. To the rear of shaft 10, and parallel therewith, is a feed screw 17 which is supported in adjustable conical bearings thatare mounted in end plate 2 and standard 7, respectively; and a belt-pulley 18 is carried by the feed screw 17 in line with the smaller pulley -12 feed screw nally of the mandrel.

with the record tablet.

the fingers of the operator on the mandrel shaft 10. A rear guide rail 19 is secured between end plate 2 and standard 8. The belt-pulley 11 on the mandrel shaft is driven at a high rate of speed by belt from the motor, in the usual manner; and the belt 20 from smaller pulley 12 drives pulley 18 and feed screw 17.

A carriage 21 slides on the back guide 19, being mounted thereon in any convenient manner, and this carriage carries a flat spring 22 at the forward end of which is a partial nut 23, which nut meshes with the 17. A'bridge-piece 24 projects from the carriage over the mandrel and rests in front of the same upon the forward guide 3. j

Between the mandreland its pulley, and beneath the mandrel shaft, is journaled a transverse rock-shaft 40 which is provided with a handle 41 and an upwardly projecting arm 42. This arm 42 bears against a longitudinally sliding bar 43 mounted in suitable bearings one of which may be standard 4, preferably beneath and parallel-with the mandrel shaft. A spring 45 encircles the bar 43 and tends to force said bar to the left, away from the mandrel. Secured to said sliding barin any suitable manner is a plate 46, preferably crescent shape, which plate hes opposite the annular inner end of the record cylinder or tablet upon the mandrel. By swinging handle 41 of the rock-sha1t toward the right, spring 45 is compressed and plate 46 is forced to the right, engaging the cylinder and moving the same longitudi lVhen the handle 41 1s released, the spring 45 restores the parts to their initial position. It will be understood that before the record cylinder or tablet is removed, the motor is stopped (or its shaft thrown out of geaifi the end gate 15 is thrown open, and the handle 41 is then moved toward the right into engagement The movement imparted to the record tablet by the mechanism described projects said tablet beyond the end of the mandrel a sufficient distance so that maybe readily inserted in said projecting end, and the record removed from the mandrel without danger. of injury to the surface :of'thej same.

While the invention has been illustrated 1 machine. for shaving in association with a invention is not the appended claims.

What is claimed is: 1. In combination, a revolving mandrel, a

record cylinder mounted thereon, a throwrock-shaft having a handle, nally-sliding bar connected to and actuated said rock-shaft, and ejecting means forv oil. for said cylinder comprising a transverse a longitudisaid cylinder carried by the end of the longitudinal bar in juxtaposition to the end of the cylinder.

2. In combination, a revolving mandrel, a record cylinder mounted thereon, a throwoff for said cylinder comprising a transverse rock-shaft having a handle, a longitudinally-sliding bar actuated by said rock.-

shaft, a p

' gitudinal bar in juxtaposition tothe end of the .cylinder, anil means for holding said understood that it late carried by the end of the 1011- plate normally out of contact with the cylinder.'

3. In combination, a revolving mandrel adapted to receive a cylinder, of a throw-ofi therefor comprising a transverse rock-shaft having a handle, a longitudinally-sliding fshaft actuated by said rock-shaft, a plate carried by the end of the longitudinal shaft in juxtaposition to the end of the cylinder, and means for holding said plate normally out of contact with the cylinder.

4. In combination, a revolving mandrel, a record cylinder mounted thereon, a throwofi for said cylinder comprising a transverse rock-shaft having a handle, a longitudinally-sliding bar, an arm mounted on said rock-shaft and engaging said bar, a plate carried by the end of the longitudinal bar in juxtaposition to the end of the cylinder, and a spring for holding said plate normally out of contact with the cylinder.

In testimonywhereof I have signed this specification in the presence of two subscribing Witnesses.

' THOMAS H. MACDONALD.

Witnesses M. It, PARDOE, j C. W. HEDBERG. 

